Now to the latest breaking details on the boston bombing investigation. Questions ab who will claim the body of the older suspect as we learn who may have helped radicalize him and brian ross is here with the latest. The boston medical examiner says it is ready to release the body of tamerlan but his wife, the mother of his child says she does not want him. No longer using her muslim name and still under intense federal scrutiny for anyble role in the bombing, katherine russell made it clear she wants nothing to do with her dead husband. Her lawyer issued a wring statement overnight saying she will not claim the body. "It is katherine russell's wish that his remains be released to the tsarnaev family." The fbi is still studying the wife's dna to see if it matches the female dna found on bomb fragments and then continue to investigate whether she or any of the brother's friends or relatives tried to dispose of evidence after the bombing, either unknowingly or knowingly. I believe that he's wrongfully being accused. Reporter: There is one and maybe only one family friend who continues to keep faith with the brother tsarnaev. Brittany smith of long island, new york, a friend of dzhokhar and his sister told linsey davis of abc news even the surveillance images don't per wade her. I few dzhokhar knew dzhokhar. I don't see them planting explosives. I believe they needed two people to blame. Reporter: But the evidence continues to mount including from russia. U.S. Authorities tell abc news they believe a turning point for tamerlan tsarnaev came last year in the russian republic of dagestan at this mosque known to be a gathering spot for extremists. Russian security services told their american counterparts the boston resident was seen meeting and leaving from the mosque with a known chechen terror recruiter, mansur nidal, who was later killed in a standoff with authorities while tsarnaev was still in dagestan. A sister of the two tsarnaev brother, bella, told abc news she and her other sister will claim the body of tamerlan and provide him a properly muslim funer funeral. And they're saying it may take place in boston. That's what they're saying. To the white house where

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